Israel donald boyer



2 Sheets-Sheet 1.

(No Model.)

Patented 001;. 29, 1889.

W w m 6? h v zy mama er w/ 2 Sheets-Sheet 2.'

(No Mode I. D. BOYER.

oAsH REGISTBR AND INDIGATOR.

Patented 0011.29, 1889.

UNITED STATES PATENT OFFICE.

ISRAEL DONALD BOYER, OF DAYTON, OHIO, ASSIGNOR TO THE NATIONAL CASI-I REGISTER COJWIPANY, OF SAME PLACE.

CASH REGISTER AND INDICATOR.

SPECIFICATION forming' part of Letters Patent No. 414,010, dated October 29, 1889. Application filed July 8, 1889. Serial No. 316,750. (No model.) Patentedin Canada July 12, 1889, No. 50,412.

T0 all whom it may conoern:

Be it known that I, IsRAEL DONALD BOYER, acitizen of the United States, residing at Dayton,in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Cash Registers and Indicators, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

The novelty of my invention will be herein set forth, and specifically pointed out in the claims.

In the accompanying drawings, Figure lis a front view of a portion of a machine embodying my improvements, looking' in the direction of the arrow in Fig. 2. Fig. 2 is a side elevation in section of a portion of the same. Fig. 3 is a detail in front elevation of a portion of the registering-shaft, the driVing-pinion and ratchet, the clutch between the pinion and shaft, and the devices associated th erewi th The same letters of reference are used to indicate identical parts in all the figures.

The Operating parts of the machine are inclosed in a suitable case or cabinetA,havi11g its upper front portio'n formed of a slotted plate B, through the slots in which extend and play the upper ends of the Operatingkeys O, and provided at its upper central orv rear portion with a glass covered readingopening D, through which suitable indicating-tablets are exposed to view. The operating-keys C, of the shape shown, are pivoted on a shaft E, extending 'across the machine, and have rearward extensions F, the Vertical portion of each key and its rear extension F forming a bell-crank lever, as shown.

Pivoted on a shaft G at the rear of the machine are a series of levers H, one for each key C, and each connected at its forward end to the extension F of its corresponding key by slot-and-pin connection at a, so that when any key is operated by pulling its upper end forward to the end of its slot in the plate B its lever H is lifted to the position shown by the dotted lines in Fig. 2. Extending across all of the levers H, in front of their pivotal shaft G, is a vibrating bar I, supported in any suitable manner, as by side arms hung on the shaft G. This bar I rests on the tops of the levers II, and whenever any key is operated is lifted to the position shown by the dotted lines in Fig. 2.

Rigidly secured to a central shaft J, extending across the machine and supported in suitable bearings, is an arrn K, carrying at its upper' end a segmentrack L, which meshes with a pinion M on the registeriug-shaft N, journaled in the upper rear part of the machine. The pinion M is loose on the shaft N, and one end of its hub is provided with clutchteeth arranged to en gage corresponding teeth on the adjacent end of the hub b, which is rigidly secured to the shaft N. (See Fig. 3.) Secured to or integral with the `pinion M on its side opposite the clutch is a ratchet M'. A coiled spring c surrounds the shaft N between the ratchet M' and a collar d, secured upon the shaft N, and serves to press and normally hold the hub of the pinion M against the hub and their teeth in engagement to effect a clutch between them, so that when the pinion M is turned forward by the downward movement of the rack L the shaft N is turned with it. The teeth of the clutch are made of the Shape shown, so that in the backward turning of the pinion M on the return-stroke of the rack L the teeth of its hub can slip freely over those of the hub b against the pressure of the spring c, and the shaft N remain stationary.

The registering-shaftN is connected to and actuates any suitable or well-known registering mechanism,whose particular construction forms no part of my invention, and which I therefore oonsider it unnecessary to illnstrate or describe.

Rigidly secured to the shaft J' are a series of forwardly-projecting arms O, one for each key O, and each connected to the rear extension of its appropriate key by a slotted link I), pivoted at its lower end to the extension F, and engaging by the slot at its upper end with a pin on the arm O. The arms O may be rigidly secured to the shaft J in any suitable manner. In the drawings they are shown as secured thereto by split hubs Q, each in- 'tegral with its arm O, which hubs embrace the shaft J, and are clamped thereto by screws R, passed through the split ends of the hubs.

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In this manner the'v arms O may be securedi uponthe shaft J in different positions and adj usted as desired. It results from this construction and arrangement of the parts that When a key O is operated by pulling its upper end forward to the end of its slot in the plate B, and its rear extension is thereby lifted, the shaft J will be' rockediin its bearings, the rack L Vibrated, and the pinion M and shaftNturned to actuate the registering mechanism, all as shown by the dottcd lines in Fig. 2. A coiled spring e serves to return the rack L,to and yieldingly holditin its normalposition. i

To avoid 'confusion in the drawings'l have shown in Fig. 2 only one key G and its associated parts; butit will be understood that the keys are arranged to move the shaft J and rack L different degrees, according` to the values of the keys, and in the construction shown in the drawings this is accomplished by pivoting the lower ends of the links P to the extensions F of the keys at different distances from the pivotal shaft E of the keys, those of the keys of lowest Value being pivoted nearest said shaft, and those of the highest value farthest from it. Thus the key shown in Fig. 2 represents one of about the middle value of the series, and its `link P is pivoted tov its extension F at such distance from the shaft E that the full operation of the key'inoves the segment-rack L .about onehalf its full limit. It will readily be seen that the operation of a key whose link is pivoted to itsV extension F nearer the rear end of the latter will move the rack L farther and make a higher registration.

As illustrated in the drawings, the pinion M has twenty teeth.

The keys O represent multi ples of five, from O to$l.00, and are arranged to turn the pinion M one tooth for each five of their values. Thus the five-cent key will turn the pinion Ml one tooth, the twenty-five-cent key fivev and teeth, the fifty-cent key ten teeth, thereby actuating the registering mechanism to register five, twenty-five, and fifty cents, respectively, and this variable registration is brought about by the adjustment of the links P on the extensions F, as above described. This diiferential adjustment may be aided, if desired, by adj usting the arms O in diiferent positions on the shaft J, as before explained, and by Varying the length of the slots in the upper ends of the links P, as will be readil'y understood.V t

Theparts of the machine thus far described are old and not of my invention, and thesame is true of the indicating mechanism, which consists of a series of figured tablets supported intheV upper central portion of the case and actuated in any suitable manner to expose their respective numbers at the reading-openinglD. It is therefore thought unnecessary .to describe the old parts of the machine' any further in order to give a clearunderstanding of my own invention, whichconsists in the ister an indefinite amount.

application t o such machine of novel and improved means' for looking the registering mechanism from'operationi during the .resetting of an operated key.

In machines of this character, where a series of keys of different values actuate a common,

registeringmechanism to different degrees to register the values of the respective keys, there is usually provided a key-arrester,whicli arrests a partially-operated key and prevents it being reset until it has been operated to its full extent and its full Value registered,whereupon the arrester is thrown out of operation to'permit'the-key 'to' be reset to normal position; vDuring'this resetting of' the key,

unless special means be provided to prevent it, the key will be free to be pumped back,

and forth from a point near its normal position to the limit of its stroke, and the registerin g mechanism be thereby actuated to reg- It is 'the object of my present invention to prevent this 'pumping of the machine, and I have Adevised novel means for this purpose. (Shown more particularly in Fig. 2.) Pivoted at f to any suitable support is a bell-crank S, the end g of whose upper horizontal arm is adjacent .to and suitably shaped to act as a pawlv for the ratchet M' and whose lower Vertical arm has a lateral projection h, with which engages a latch T, pivoted at A fiat'spring j,bearing against the Vertical arm of the bell-crank S, tends to press the pawl g into engagement with the teeth of the ratchet M', while the latch T normally holds it out of such engagement against the pressure of the spring. Se-

.cured to and projccting upwardly from the' bar I beneath the latch T is a .trip rod or arm U, which, just at the moment| an operated key reaches its limit o f movement and its lever H and the bar I reach their highest position, strikes and lifts the latch T, thereby releasing the bell-crank S, whose spring j immediately throws the pawl gginto engagement with the ratchet M' v It results from this construction and arrangement of the parts that When any key is operated, and the rack L thereby moved downward, the pinion M and ratchet M' are free to be turned forward to revolve the registering-shaft N and actuate the registering mechanism to register the value of the key but just as the key reaches its limit of stroke and its full value isv registered the pawl is released and pressed into engagement with the ratchet, as shown by the dotted lines in Fig. 2. As the key and rack L move back to normal position the pawl g slips freely over the teeth of the ratchet; but if the key be stopped at any point before being completely reset and it be attempted to pull it forward from that point Vthe pawl engages a tooth of the ratchet and looks the keys from such movement. To d'isengage the pawl from the ratchet when the key has been completely reset to normal position and latch it out of en gagement, to permit the operation of V IOO IIO

the next key, I provide a lever V, pivoted at V. i

h between the key-levers H, and having a rearwardly-bent lower end k, upon which rests the bar I, which normally holds the upper end of the lever pressed rearward against the lower end of the Vertical arm of the bell-crank S. IVhen a key is operated and the bar I lifted, the upper end of the lever is free to be pressed forward to the position shown by the dotted lines in Fig. 2 by the bell-crank S when the latch T is tripped by the rod U; but when the key is reset the bar I, as it reaches its normal position of rest, bears down on the horizontal end Z of the lever and throws its upper end rearward against the Vertical arm of the bellcrank S, thereby throwing the pawl g out of engagement with the ratchet M' and the projection 71/ back under the'beveled nose of the latch T, which thereupon engages it and holds the pawl out of engagement with the ratchet M'.

My invention vis not limited to any'particular construction and arrangement of the ratchet and pawl and their co-operating devices, since these may be largely varied without ,departing from the invention.

In another pendin g application, filed simultaneously herewith and bearing Serial No. 316,749, I have described and c1aimed,broadly, a ratchet on the registeringshaft, whether it be tight on said shaft, as illustrated in that case, or loose on said shaft and secured to the driving-pinion, as in this case, in combination with a looking-dog which is engaged with said ratchet at the completion of the registering-stroke of a key, and disengaged therefrom at the oompletion of the opposite stroke of the key, and to that extent, therefore, the claims in the present application are subordinate to those in that case.

Having thus fully described my invention, I claiin- 1. In a cash register and indicator having' a series of Operating-keys, the combination of registering-shaft, a driving-pinion loose thereon, a cluteh between said pinion and shaft, a ratchet secured to said pinion, and a pawl which is free from said ratchet during the registering-stroke of the Operating-keys and engaged therewith during the opposite stroke of said keys, substantially as and for the purpose described.

2. In a cash register and indicator having` a series of Operating-keys, the combination of a registering-shaft, a driving-pinion loose thereon, a cluteh between said pinion and shaft, a ratchet secured to said pinion, a pawl arranged to engage said ratchet, a latch for holding the pawl out of engagement with the ratchet during the registering-stroke of the keys, and a trip for said latch, substantially as and for the purpose described.

3. In a cash register and indicator, the com; bination of a series of Operating-keys of different values, a rack actuated to different degrees by the operation of the different keys of said series, a registering-shaft, a drivingpinion loose thereon and meshing with the rack, a cluteh between the pinion and shaft,

a ratchet secured to the dr'iving-pinion, and a pawl which is free from said ratchet during the registering-stroke of the Operating-keys and engaged therewith during the opposite stroke of said keys, substantially as and for the purpose described.

4. In a cash register and indicator, the combination of a series of Operating-keys of different values, a rack actuated to different degrees by the operation of the different keys of said series, a registering-shaft, a drivingpinion loose thereon and meshing with the rack, a cluteh between the pinion and shaft, a ratchet secured to the driving-pinion, a pawl arranged to en gage therewith, a latch for holding the pawl and ratchet out of engagement during the registering-stroke of the keys, and a trip for said latch, substantially as and for the purpose described.

5. In a cash register and indicator having a series of Operating-keys of different values, the combination of the rack L, actuated to different degrees by the different keys of said series, the shaft N, pinion M, loose on said shaft, the cluteh between said pinion and shaft, ratchet M', secured to the pinion M, pawl g on the bell-crank S, latch T, and trip U, substantially as and for the purpose described.

6. In a cash register and indicator, the combination of the Operating-keys C, levers H, rack L, arms O, rigid therewith, links P, registering-shaft N, pinion M, the cluteh between said pinion and shaft, ratchet M' pawl g on bell-crank S, latch T, bar I, trip U, and lever V, substantially as and for the purpose described.

ISRAEL DONALI) BOYER.

Witnesses:

THOMAS CORWIN, HENRY THEOBALD.

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